CHANG Ken-Lin1, CHEN Chih-Cheng2, LIN Jun-Hong3, HSIEH Jung-Feng4, WANG Yin1, ZHAOFen, . Rice straw-derived activated carbons for the removal of carbofuran from an aqueous solution. New Carbon Mater., 2014, 29(1): 47-54. doi: 10.1016/S1872-5805(14)60125-6
Citation:
CHANG Ken-Lin1, CHEN Chih-Cheng2, LIN Jun-Hong3, HSIEH Jung-Feng4, WANG Yin1, ZHAOFen, . Rice straw-derived activated carbons for the removal of carbofuran from an aqueous solution. New Carbon Mater., 2014, 29(1): 47-54. doi: 10.1016/S1872-5805(14)60125-6
CHANG Ken-Lin1, CHEN Chih-Cheng2, LIN Jun-Hong3, HSIEH Jung-Feng4, WANG Yin1, ZHAOFen, . Rice straw-derived activated carbons for the removal of carbofuran from an aqueous solution. New Carbon Mater., 2014, 29(1): 47-54. doi: 10.1016/S1872-5805(14)60125-6
Citation:
CHANG Ken-Lin1, CHEN Chih-Cheng2, LIN Jun-Hong3, HSIEH Jung-Feng4, WANG Yin1, ZHAOFen, . Rice straw-derived activated carbons for the removal of carbofuran from an aqueous solution. New Carbon Mater., 2014, 29(1): 47-54. doi: 10.1016/S1872-5805(14)60125-6
Institute of Urban and Environment, Chinese Academy of Sciences, Xiamen 361021, China|2.Graduate Institute of Environmental Planning and Management, Taipei University of Technology, Taipei, China|3.Graduate Institute of Natural Healing Sciences, Nanhua University, Chiayi, China|4.Department of Food Science, Fu Jen Catholic University, XinZhuang, Taipei, China|5.Institute of Biological Chemistry and Genomic Research Center, “Academia Sinica”, Taipei, China
Activated carbon was prepared from rice straw by carbonization and KOH activation, and was used as an adsorbent for the removal of a kind of pesticide, carbofuran (2,3-dihydro-2,2-dimethylbenzofuran-7-yl methylcarbamate) from aqueous solution. The effects of the initial carbofuran concentration, contact time, temperature and pH, on its adsorption capacity and kinetics were studied using a batch method. The surface area and average pore diameter of the activated carbon were 1304.8m2/g and 2.39nm, respectively. The maximum adsorption capacity of the activated carbon (296.52mg/g) for carbofuran was found to occur at 90min, 30℃ and 200mg/L initial carbofuran concentration with an adsorbent loading of 100mg/L. Equilibrium adsorption isotherms were fitted better by the Langmuir model than the Freundlich and Temkin models. The adsorption follows a pseudo-second-order kinetics model.
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